WorksheetsN5 Chemistry- Formula and Reacting Quantites
Total questions: 26
Worksheet time: 2hrs 51mins
Calculate the formula mass of CaCO3
18
100
102
53.5
Balance this equation:
H2 + Cl2 ---> HCl
It is balanced.
H2 + Cl2 ---> 2HCl
3H2 + Cl2 ---> 6HCl
H2 + 3Cl2 ---> 6HCl
What is the total number of atoms present in 5Na3PO4?
5
55
40
8
Calculate the formula mass of H2O
18
100
102
53.5
Calculate the formula mass of potassium carbonate
18
100
102
53.5
Calculate the formula mass of ammonium chloride
18
100
102
53.5
Calculate the mass of one mole of C6H12O6
180
150
138
120.5
Calculate the mass of one mole of (NH4)3SO4
180
150
138
120.5
Calculate the mass of 0.25 mol of Mg(NO3)2
46g
37.13 g
46 kg
37.1 kg
Calculate the mass of 2 mol of sodium
46g
4.6g
46 kg
46 l
Calculate the number of moles in 5.6 g KOH
3 mol
0.2 mol
0.1 mol
0.02mol
Calculate the number of moles in 2.2 g of lithium sulfate
3 mol
0.2 mol
0.1 mol
0.02mol
Calculate the number of moles of potassium hydroxide that is dissolved to make 500 cm3 of 1 mol/l.
0.5 mol
0.1 mol
0.01 mol
0.5 mol
Calculate the number of moles of potassium hydroxide that is dissolved to make 200 cm3 of 0.5 mol/l.
0.5 mol
0.1 mol
0.01 mol
0.5 mol
Calculate the concentration of 1 mol of hydrogen chloride dissolved to make 100 cm3 of solution.
1 mol/l
2.5 mol/l
0.25 mol/l
10 mol/l
Calculate the concentration of 0.1 mol of hydrogen chloride dissolved to make 500 cm3 of solution.
1 mol/l
2.5 mol/l
0.2 mol/l
10 mol/l
Calculate the volume of a 0.4 mol l-1 solution containing 0.1 mol of solute
2 l
0.05 l
5 l
0.25 l
Calculate the volume of a 0.1 mol l-1 solution containing 0.5 mol of solute
2 l
0.05 l
5 l
0.25 l
Calculate the number of grams of substance required to make 1 litre of Na2CO3 solution, concentration 2 mol/l
10.6 g
0.345 g
33g
8.2 g
Calculate the number of grams of substance required to make 200cm3 of calcium nitrate solution, concentration 0.25 mol/l
10.6 g
0.345 g
33g
8.2 g
Calculate the concentration of 1.27g of iron (II) chloride dissolved to make 2 litres of solution
0.4mol/l
0.02mol/l
0.005 mol/l
0.1 mol/l
Calculate the concentration of 1.38 g K2CO3 dissolved to make 100 cm3 of solution
0.4mol/l
0.02mol/l
0.005 mol/l
0.1 mol/l
What is the meaning of standard solution?
A solution of which its concentration does not accurately known.
Measurement that shows the quantity of solute in one unit of volume of solution
A solution of which its concentration is accurately known.
Concentration that shows the number of mol of solute
The formula of magnesium chloride is
MgCl
MgCl2
MgCl3
The formula of ammonium ion is
NH3
NH3+
NH4
NH4+
What is the chemical formula of sodium sulfate?
SSO4
SoSO4
NaSO4
Na2SO4
